diff --git a/tests/Makefile b/tests/Makefile
index aba002b..137579d 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -2,7 +2,7 @@
 # To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
 
 CFLAGS	?= -O2
-WARNING_CFLAGS ?= -Wall -W -Wdeclaration-after-statement -Wno-unused-function -Wno-unused-value
+WARNING_CFLAGS ?= -Wall -Wextra
 LDFLAGS ?=
 
 CRYPTO_INCLUDES ?= -I../include
diff --git a/tests/docker/bionic/Dockerfile b/tests/docker/bionic/Dockerfile
new file mode 100644
index 0000000..1b2d40f
--- /dev/null
+++ b/tests/docker/bionic/Dockerfile
@@ -0,0 +1,168 @@
+# Dockerfile
+#
+# Purpose
+# -------
+# Defines a Docker container suitable to build and run all tests (all.sh),
+# except for those that use a proprietary toolchain.
+
+# Copyright (C) 2006-2019, Arm Limited (or its affiliates), All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
+ARG MAKEFLAGS_PARALLEL=""
+ARG MY_REGISTRY=
+
+FROM ${MY_REGISTRY}ubuntu:bionic
+
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update \
+    && apt-get -y install software-properties-common \
+    && rm -rf /var/lib/apt/lists
+
+RUN add-apt-repository -y ppa:team-gcc-arm-embedded/ppa
+
+RUN apt-get update \
+    && apt-get -y install \
+    # mbedtls build/test dependencies
+    build-essential \
+    clang \
+    cmake \
+    doxygen \
+    gcc-arm-none-eabi \
+    gcc-mingw-w64-i686 \
+    gcc-multilib \
+    g++-multilib \
+    gdb \
+    git \
+    graphviz \
+    lsof \
+    python \
+    python3-pip \
+    python3 \
+    pylint3 \
+    valgrind \
+    wget \
+    # libnettle build dependencies
+    libgmp-dev \
+    m4 \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+
+# Build a static, legacy openssl from sources with sslv3 enabled
+# Based on https://gist.github.com/bmaupin/8caca3a1e8c3c5686141 (build-openssl.sh)
+# Note: openssl-1.0.2 and earlier has known build issues with parallel make.
+RUN cd /tmp \
+    && wget https://www.openssl.org/source/old/1.0.1/openssl-1.0.1j.tar.gz -qO- | tar xz \
+    && cd openssl-1.0.1j \
+    && ./config --openssldir=/usr/local/openssl-1.0.1j no-shared \
+    && (make ${MAKEFLAGS_PARALLEL} || make -j 1) \
+    && make install_sw \
+    && rm -rf /tmp/openssl*
+ENV OPENSSL_LEGACY=/usr/local/openssl-1.0.1j/bin/openssl
+
+# Build OPENSSL as 1.0.2g
+RUN cd /tmp \
+    && wget https://www.openssl.org/source/old/1.0.2/openssl-1.0.2g.tar.gz -qO- | tar xz \
+    && cd openssl-1.0.2g \
+    && ./config --openssldir=/usr/local/openssl-1.0.2g no-shared \
+    && (make ${MAKEFLAGS_PARALLEL} || make -j 1) \
+    && make install_sw \
+    && rm -rf /tmp/openssl*
+ENV OPENSSL=/usr/local/openssl-1.0.2g/bin/openssl
+
+# Build a new openssl binary for ARIA/CHACHA20 support
+# Based on https://gist.github.com/bmaupin/8caca3a1e8c3c5686141 (build-openssl.sh)
+RUN cd /tmp \
+    && wget https://www.openssl.org/source/openssl-1.1.1a.tar.gz -qO- | tar xz \
+    && cd openssl-1.1.1a \
+    && ./config --prefix=/usr/local/openssl-1.1.1a -Wl,--enable-new-dtags,-rpath,'${LIBRPATH}' no-shared \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install_sw \
+    && rm -rf /tmp/openssl*
+ENV OPENSSL_NEXT=/usr/local/openssl-1.1.1a/bin/openssl
+
+# Build libnettle 2.7.1 (needed by legacy gnutls)
+RUN cd /tmp \
+    && wget https://ftp.gnu.org/gnu/nettle/nettle-2.7.1.tar.gz -qO- | tar xz \
+    && cd nettle-2.7.1 \
+    && ./configure --disable-documentation \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && /sbin/ldconfig \
+    && rm -rf /tmp/nettle*
+
+# Build legacy gnutls (3.3.8)
+RUN cd /tmp \
+    && wget https://www.gnupg.org/ftp/gcrypt/gnutls/v3.3/gnutls-3.3.8.tar.xz -qO- | tar xJ \
+    && cd gnutls-3.3.8 \
+    && ./configure --prefix=/usr/local/gnutls-3.3.8 --exec_prefix=/usr/local/gnutls-3.3.8 --disable-shared --disable-guile --disable-doc \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && rm -rf /tmp/gnutls*
+ENV GNUTLS_LEGACY_CLI=/usr/local/gnutls-3.3.8/bin/gnutls-cli
+ENV GNUTLS_LEGACY_SERV=/usr/local/gnutls-3.3.8/bin/gnutls-serv
+
+# Build libnettle 3.1 (needed by gnutls)
+RUN cd /tmp \
+    && wget https://ftp.gnu.org/gnu/nettle/nettle-3.1.tar.gz -qO- | tar xz \
+    && cd nettle-3.1 \
+    && ./configure --disable-documentation \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && /sbin/ldconfig \
+    && rm -rf /tmp/nettle*
+
+# Build gnutls (3.4.10)
+RUN cd /tmp \
+    && wget https://www.gnupg.org/ftp/gcrypt/gnutls/v3.4/gnutls-3.4.10.tar.xz -qO- | tar xJ \
+    && cd gnutls-3.4.10 \
+    && ./configure --prefix=/usr/local/gnutls-3.4.10 --exec_prefix=/usr/local/gnutls-3.4.10 \
+        --with-included-libtasn1 --without-p11-kit \
+        --disable-shared --disable-guile --disable-doc \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && rm -rf /tmp/gnutls*
+ENV GNUTLS_CLI=/usr/local/gnutls-3.4.10/bin/gnutls-cli
+ENV GNUTLS_SERV=/usr/local/gnutls-3.4.10/bin/gnutls-serv
+
+# Build libnettle 3.4 (needed by gnutls next)
+RUN cd /tmp \
+    && wget https://ftp.gnu.org/gnu/nettle/nettle-3.4.1.tar.gz -qO- | tar xz \
+    && cd nettle-3.4.1 \
+    && ./configure --disable-documentation \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && /sbin/ldconfig \
+    && rm -rf /tmp/nettle*
+
+# Build gnutls next (3.6.5)
+RUN cd /tmp \
+    && wget https://www.gnupg.org/ftp/gcrypt/gnutls/v3.6/gnutls-3.6.5.tar.xz -qO- | tar xJ \
+    && cd gnutls-3.6.5 \
+    && ./configure --prefix=/usr/local/gnutls-3.6.5 --exec_prefix=/usr/local/gnutls-3.6.5 \
+        --with-included-libtasn1 --with-included-unistring --without-p11-kit \
+        --disable-shared --disable-guile --disable-doc \
+    && make ${MAKEFLAGS_PARALLEL} \
+    && make install \
+    && rm -rf /tmp/gnutls*
+
+ENV GNUTLS_NEXT_CLI=/usr/local/gnutls-3.6.5/bin/gnutls-cli
+ENV GNUTLS_NEXT_SERV=/usr/local/gnutls-3.6.5/bin/gnutls-serv
+
+RUN pip3 install --no-cache-dir \
+    mbed-host-tests \
+    mock
diff --git a/tests/make-in-docker.sh b/tests/make-in-docker.sh
new file mode 100755
index 0000000..4fbfe1c
--- /dev/null
+++ b/tests/make-in-docker.sh
@@ -0,0 +1,31 @@
+#!/bin/bash -eu
+
+# make-in-docker.sh
+#
+# Purpose
+# -------
+# This runs make in a Docker container.
+#
+# See also:
+# - scripts/docker_env.sh for general Docker prerequisites and other information.
+
+# Copyright (C) 2006-2019, Arm Limited (or its affiliates), All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
+
+source tests/scripts/docker_env.sh
+
+run_in_docker make $@
diff --git a/tests/scripts/all-in-docker.sh b/tests/scripts/all-in-docker.sh
new file mode 100755
index 0000000..ee9a092
--- /dev/null
+++ b/tests/scripts/all-in-docker.sh
@@ -0,0 +1,37 @@
+#!/bin/bash -eu
+
+# all-in-docker.sh
+#
+# Purpose
+# -------
+# This runs all.sh (except for armcc) in a Docker container.
+#
+# Notes for users
+# ---------------
+# See docker_env.sh for prerequisites and other information.
+#
+# See also all.sh for notes about invocation of that script.
+
+# Copyright (C) 2006-2019, Arm Limited (or its affiliates), All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
+
+source tests/scripts/docker_env.sh
+
+# Run tests that are possible with openly available compilers
+run_in_docker tests/scripts/all.sh \
+    --no-armcc \
+    $@
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 3e3fab4..5121e17 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -223,6 +223,11 @@
     rm -f programs/test/cmake_subproject/Makefile
     rm -f programs/test/cmake_subproject/cmake_subproject
 
+    # Remove any artifacts from the component_test_cmake_as_subdirectory test.
+    rm -rf programs/test/cmake_subproject/build
+    rm -f programs/test/cmake_subproject/Makefile
+    rm -f programs/test/cmake_subproject/cmake_subproject
+
     if [ -f "$CONFIG_BAK" ]; then
         mv "$CONFIG_BAK" "$CONFIG_H"
     fi
@@ -541,7 +546,7 @@
 
 component_check_names () {
     msg "test/build: declared and exported names" # < 3s
-    record_status tests/scripts/check-names.sh
+    record_status tests/scripts/check-names.sh -v
 }
 
 component_check_doxygen_warnings () {
@@ -580,6 +585,19 @@
     record_status tests/scripts/test-ref-configs.pl
 }
 
+component_test_no_pem_no_fs () {
+    msg "build: Default + !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO (ASan build)"
+    scripts/config.pl unset MBEDTLS_PEM_PARSE_C
+    scripts/config.pl unset MBEDTLS_FS_IO
+    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C # requires a filesystem
+    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # requires PSA ITS
+    CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
+
+    msg "test: !MBEDTLS_PEM_PARSE_C !MBEDTLS_FS_IO - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
+}
+
 component_test_rsa_no_crt () {
     msg "build: Default + RSA_NO_CRT (ASan build)" # ~ 6 min
     scripts/config.pl set MBEDTLS_RSA_NO_CRT
@@ -642,7 +660,6 @@
     make CC=clang CFLAGS='-O -Werror -Wall -Wextra -Wno-unused-function' tests
 }
 
-
 component_test_depends_curves () {
     msg "test/build: curves.pl (gcc)" # ~ 4 min
     record_status tests/scripts/curves.pl
@@ -669,24 +686,38 @@
     make TEST_CPP=1
 }
 
-component_test_use_psa_crypto_full_cmake_asan() {
-    # MBEDTLS_USE_PSA_CRYPTO: run the same set of tests as basic-build-test.sh
+component_test_no_use_psa_crypto_full_cmake_asan() {
+    # full minus MBEDTLS_USE_PSA_CRYPTO: run the same set of tests as basic-build-test.sh
     msg "build: cmake, full config + MBEDTLS_USE_PSA_CRYPTO, ASan"
     scripts/config.pl full
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
-    scripts/config.pl unset MBEDTLS_ECP_RESTARTABLE  # restartable ECC not supported through PSA
+    scripts/config.pl set MBEDTLS_ECP_RESTARTABLE  # not using PSA, so enable restartable ECC
     scripts/config.pl set MBEDTLS_PSA_CRYPTO_C
-    scripts/config.pl set MBEDTLS_USE_PSA_CRYPTO
+    scripts/config.pl unset MBEDTLS_USE_PSA_CRYPTO
+    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
+    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
     CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
     make
 
-    msg "test: main suites (MBEDTLS_USE_PSA_CRYPTO)"
+    msg "test: main suites (full minus MBEDTLS_USE_PSA_CRYPTO)"
     make test
 }
 
+component_test_check_params_functionality () {
+    msg "build+test: MBEDTLS_CHECK_PARAMS functionality"
+    scripts/config.pl full # includes CHECK_PARAMS
+    # Make MBEDTLS_PARAM_FAILED call mbedtls_param_failed().
+    scripts/config.pl unset MBEDTLS_CHECK_PARAMS_ASSERT
+    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
+    # Only build and run tests. Do not build sample programs, because
+    # they don't have a mbedtls_param_failed() function.
+    make CC=gcc CFLAGS='-Werror -O1' lib test
+}
+
 component_test_check_params_without_platform () {
     msg "build+test: MBEDTLS_CHECK_PARAMS without MBEDTLS_PLATFORM_C"
     scripts/config.pl full # includes CHECK_PARAMS
+    # Keep MBEDTLS_PARAM_FAILED as assert.
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
     scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
     scripts/config.pl unset MBEDTLS_PLATFORM_EXIT_ALT
@@ -704,6 +735,7 @@
     msg "build+test: MBEDTLS_CHECK_PARAMS with alternative MBEDTLS_PARAM_FAILED()"
     scripts/config.pl full # includes CHECK_PARAMS
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    # Set MBEDTLS_PARAM_FAILED to nothing.
     sed -i 's/.*\(#define MBEDTLS_PARAM_FAILED( cond )\).*/\1/' "$CONFIG_H"
     make CC=gcc CFLAGS='-Werror -O1' all test
 }
@@ -726,7 +758,6 @@
     scripts/config.pl unset MBEDTLS_FS_IO
     scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
     scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
     # Note, _DEFAULT_SOURCE needs to be defined for platforms using glibc version >2.19,
     # to re-enable platform integration features otherwise disabled in C99 builds
     make CC=gcc CFLAGS='-Werror -Wall -Wextra -std=c99 -pedantic -O0 -D_DEFAULT_SOURCE' lib programs
@@ -799,14 +830,14 @@
 
 component_test_make_shared () {
     msg "build/test: make shared" # ~ 40s
-    make SHARED=1 all check
+    make SHARED=1 all check -j1
 }
 
 component_test_m32_o0 () {
     # Build once with -O0, to compile out the i386 specific inline assembly
     msg "build: i386, make, gcc -O0 (ASan build)" # ~ 30s
     scripts/config.pl full
-    make CC=gcc CFLAGS='-O0 -Werror -Wall -Wextra -m32 -fsanitize=address'
+    make CC=gcc CFLAGS='-O0 -Werror -Wall -Wextra -m32 -fsanitize=address' LDFLAGS='-m32 -fsanitize=address'
 
     msg "test: i386, make, gcc -O0 (ASan build)"
     make test
@@ -825,7 +856,7 @@
     scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE
     scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
     scripts/config.pl unset MBEDTLS_MEMORY_DEBUG
-    make CC=gcc CFLAGS='-O1 -Werror -Wall -Wextra -m32 -fsanitize=address'
+    make CC=gcc CFLAGS='-O1 -Werror -Wall -Wextra -m32 -fsanitize=address' LDFLAGS='-m32 -fsanitize=address'
 
     msg "test: i386, make, gcc -O1 (ASan build)"
     make test
@@ -837,7 +868,7 @@
 component_test_mx32 () {
     msg "build: 64-bit ILP32, make, gcc" # ~ 30s
     scripts/config.pl full
-    make CC=gcc CFLAGS='-Werror -Wall -Wextra -mx32'
+    make CC=gcc CFLAGS='-Werror -Wall -Wextra -mx32' LDFLAGS='-mx32'
 
     msg "test: 64-bit ILP32, make, gcc"
     make test
@@ -905,39 +936,13 @@
 
 component_build_arm_none_eabi_gcc () {
     msg "build: arm-none-eabi-gcc, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-    # following things are not in the default config
-    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-    scripts/config.pl unset MBEDTLS_THREADING_C
-    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl baremetal
     make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
 }
 
 component_build_arm_none_eabi_gcc_no_udbl_division () {
     msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-    # following things are not in the default config
-    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-    scripts/config.pl unset MBEDTLS_THREADING_C
-    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl baremetal
     scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
     make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
     echo "Checking that software 64-bit division is not required"
@@ -946,20 +951,7 @@
 
 component_build_arm_none_eabi_gcc_no_64bit_multiplication () {
     msg "build: arm-none-eabi-gcc MBEDTLS_NO_64BIT_MULTIPLICATION, make" # ~ 10s
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-    # following things are not in the default config
-    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-    scripts/config.pl unset MBEDTLS_THREADING_C
-    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
+    scripts/config.pl baremetal
     scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
     make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -O1 -march=armv6-m -mthumb' lib
     echo "Checking that software 64-bit multiplication is not required"
@@ -968,24 +960,7 @@
 
 component_build_armcc () {
     msg "build: ARM Compiler 5, make"
-    scripts/config.pl full
-    scripts/config.pl unset MBEDTLS_TIMING_C
-    scripts/config.pl unset MBEDTLS_FS_IO
-    scripts/config.pl unset MBEDTLS_PSA_ITS_FILE_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
-    scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
-    scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
-    scripts/config.pl unset MBEDTLS_HAVE_TIME
-    scripts/config.pl unset MBEDTLS_HAVE_TIME_DATE
-    scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY
-    # following things are not in the default config
-    scripts/config.pl unset MBEDTLS_DEPRECATED_WARNING
-    scripts/config.pl unset MBEDTLS_HAVEGE_C # depends on timing.c
-    scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
-    scripts/config.pl unset MBEDTLS_THREADING_C
-    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
-    scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
-    scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT # depends on MBEDTLS_HAVE_TIME
+    scripts/config.pl baremetal
 
     make CC="$ARMC5_CC" AR="$ARMC5_AR" WARNING_CFLAGS='--strict --c99' lib
     make clean
@@ -1008,15 +983,15 @@
 
 component_build_mingw () {
     msg "build: Windows cross build - mingw64, make (Link Library)" # ~ 30s
-    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 lib programs
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 lib programs -j1
 
     # note Make tests only builds the tests, but doesn't run them
-    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror' WINDOWS_BUILD=1 tests
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror' WINDOWS_BUILD=1 tests -j1
     make WINDOWS_BUILD=1 clean
 
     msg "build: Windows cross build - mingw64, make (DLL)" # ~ 30s
-    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 lib programs
-    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 tests
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 lib programs -j1
+    make CC=i686-w64-mingw32-gcc AR=i686-w64-mingw32-ar LD=i686-w64-minggw32-ld CFLAGS='-Werror -Wall -Wextra' WINDOWS_BUILD=1 SHARED=1 tests -j1
     make WINDOWS_BUILD=1 clean
 }
 support_build_mingw() {
diff --git a/tests/scripts/basic-build-test.sh b/tests/scripts/basic-build-test.sh
index a653001..54ca934 100755
--- a/tests/scripts/basic-build-test.sh
+++ b/tests/scripts/basic-build-test.sh
@@ -43,6 +43,7 @@
 
 # Step 1 - Make and instrumented build for code coverage
 export CFLAGS=' --coverage -g3 -O0 '
+export LDFLAGS=' --coverage'
 make clean
 cp "$CONFIG_H" "$CONFIG_BAK"
 scripts/config.pl full
@@ -53,6 +54,9 @@
 # Step 2 - Execute the tests
 TEST_OUTPUT=out_${PPID}
 cd tests
+if [ ! -f "seedfile" ]; then
+    dd if=/dev/urandom of="seedfile" bs=32 count=1
+fi
 
 # Step 2a - Unit Tests
 perl scripts/run-test-suites.pl -v 2 |tee unit-test-$TEST_OUTPUT
diff --git a/tests/scripts/basic-in-docker.sh b/tests/scripts/basic-in-docker.sh
new file mode 100755
index 0000000..096f8ed
--- /dev/null
+++ b/tests/scripts/basic-in-docker.sh
@@ -0,0 +1,47 @@
+#!/bin/bash -eu
+
+# basic-in-docker.sh
+#
+# Purpose
+# -------
+# This runs a rough equivalent of the travis.yml in a Docker container.
+# The tests are run for both clang and gcc.
+#
+# Notes for users
+# ---------------
+# See docker_env.sh for prerequisites and other information.
+
+# Copyright (C) 2006-2019, Arm Limited (or its affiliates), All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
+
+source tests/scripts/docker_env.sh
+
+run_in_docker tests/scripts/recursion.pl library/*.c
+run_in_docker tests/scripts/check-generated-files.sh
+run_in_docker tests/scripts/check-doxy-blocks.pl
+run_in_docker tests/scripts/check-names.sh
+run_in_docker tests/scripts/check-files.py
+run_in_docker tests/scripts/doxygen.sh
+
+for compiler in clang gcc; do
+    run_in_docker -e CC=${compiler} cmake -D CMAKE_BUILD_TYPE:String="Check" .
+    run_in_docker -e CC=${compiler} make
+    run_in_docker -e CC=${compiler} make test
+    run_in_docker programs/test/selftest
+    run_in_docker tests/scripts/test-ref-configs.pl
+    run_in_docker tests/scripts/curves.pl
+done
diff --git a/tests/scripts/check-files.py b/tests/scripts/check-files.py
index 00fd0ed..255bed8 100755
--- a/tests/scripts/check-files.py
+++ b/tests/scripts/check-files.py
@@ -1,14 +1,12 @@
 #!/usr/bin/env python3
+
+# This file is part of Mbed TLS (https://tls.mbed.org)
+# Copyright (c) 2018, Arm Limited, All Rights Reserved
+
 """
-This file is part of Mbed TLS (https://tls.mbed.org)
-
-Copyright (c) 2018, Arm Limited, All Rights Reserved
-
-Purpose
-
 This script checks the current state of the source code for minor issues,
 including incorrect file permissions, presence of tabs, non-Unix line endings,
-trailing whitespace, presence of UTF-8 BOM, and TODO comments.
+trailing whitespace, and presence of UTF-8 BOM.
 Note: requires python 3, must be run from Mbed TLS root.
 """
 
@@ -170,19 +168,6 @@
             return True
         return False
 
-class TodoIssueTracker(LineIssueTracker):
-    """Track lines containing ``TODO``."""
-
-    heading = "TODO present:"
-    files_exemptions = frozenset([
-        os.path.basename(__file__),
-        "benchmark.c",
-        "pull_request_template.md",
-    ])
-
-    def issue_with_line(self, line, _filepath):
-        return b"todo" in line.lower()
-
 
 class IntegrityChecker(object):
     """Sanity-check files under the current directory."""
@@ -211,7 +196,6 @@
             TrailingWhitespaceIssueTracker(),
             TabIssueTracker(),
             MergeArtifactIssueTracker(),
-            TodoIssueTracker(),
         ]
 
     @staticmethod
@@ -257,15 +241,7 @@
 
 
 def run_main():
-    parser = argparse.ArgumentParser(
-        description=(
-            "This script checks the current state of the source code for "
-            "minor issues, including incorrect file permissions, "
-            "presence of tabs, non-Unix line endings, trailing whitespace, "
-            "presence of UTF-8 BOM, and TODO comments. "
-            "Note: requires python 3, must be run from Mbed TLS root."
-        )
-    )
+    parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument(
         "-l", "--log_file", type=str, help="path to optional output log",
     )
diff --git a/tests/scripts/check-names.sh b/tests/scripts/check-names.sh
index 925037c..7d2302c 100755
--- a/tests/scripts/check-names.sh
+++ b/tests/scripts/check-names.sh
@@ -2,26 +2,42 @@
 #
 # This file is part of mbed TLS (https://tls.mbed.org)
 #
-# Copyright (c) 2015-2016, ARM Limited, All Rights Reserved
-#
-# Purpose
-#
-# This script confirms that the naming of all symbols and identifiers in mbed
-# TLS are consistent with the house style and are also self-consistent.
-#
+# Copyright (c) 2015-2019, ARM Limited, All Rights Reserved
+
 set -eu
 
+if [ $# -ne 0 ] && [ "$1" = "--help" ]; then
+    cat <<EOF
+$0 [-v]
+This script confirms that the naming of all symbols and identifiers in mbed
+TLS are consistent with the house style and are also self-consistent.
+
+  -v    If the script fails unexpectedly, print a command trace.
+EOF
+    exit
+fi
+
 if grep --version|head -n1|grep GNU >/dev/null; then :; else
     echo "This script requires GNU grep.">&2
     exit 1
 fi
 
+trace=
+if [ $# -ne 0 ] && [ "$1" = "-v" ]; then
+  shift
+  trace='-x'
+  exec 2>check-names.err
+  trap 'echo "FAILED UNEXPECTEDLY, status=$?";
+        cat check-names.err' EXIT
+  set -x
+fi
+
 printf "Analysing source code...\n"
 
-tests/scripts/list-macros.sh
+sh $trace tests/scripts/list-macros.sh
 tests/scripts/list-enum-consts.pl
-tests/scripts/list-identifiers.sh
-tests/scripts/list-symbols.sh
+sh $trace tests/scripts/list-identifiers.sh
+sh $trace tests/scripts/list-symbols.sh
 
 FAIL=0
 
@@ -82,6 +98,12 @@
     FAIL=1
 fi
 
+if [ -n "$trace" ]; then
+  set +x
+  trap - EXIT
+  rm check-names.err
+fi
+
 printf "\nOverall: "
 if [ "$FAIL" -eq 0 ]; then
     rm macros actual-macros enum-consts identifiers exported-symbols
diff --git a/tests/scripts/curves.pl b/tests/scripts/curves.pl
index ddc90c5..4791d55 100755
--- a/tests/scripts/curves.pl
+++ b/tests/scripts/curves.pl
@@ -57,7 +57,7 @@
 
     system( "CFLAGS='-Werror -Wall -Wextra' make lib" )
         and abort "Failed to build lib: $curve\n";
-    system( "cd tests && make" ) and abort "Failed to build tests: $curve\n";
+    system( "make" ) and abort "Failed to build tests: $curve\n";
     system( "make test" ) and abort "Failed test suite: $curve\n";
 
 }
diff --git a/tests/scripts/docker_env.sh b/tests/scripts/docker_env.sh
new file mode 100755
index 0000000..8bdc425
--- /dev/null
+++ b/tests/scripts/docker_env.sh
@@ -0,0 +1,93 @@
+#!/bin/bash -eu
+
+# docker_env.sh
+#
+# Purpose
+# -------
+#
+# This is a helper script to enable running tests under a Docker container,
+# thus making it easier to get set up as well as isolating test dependencies
+# (which include legacy/insecure configurations of openssl and gnutls).
+#
+# Notes for users
+# ---------------
+# This script expects a Linux x86_64 system with a recent version of Docker
+# installed and available for use, as well as http/https access. If a proxy
+# server must be used, invoke this script with the usual environment variables
+# (http_proxy and https_proxy) set appropriately. If an alternate Docker
+# registry is needed, specify MBEDTLS_DOCKER_REGISTRY to point at the
+# host name.
+#
+#
+# Running this script directly will check for Docker availability and set up
+# the Docker image.
+
+# Copyright (C) 2006-2019, Arm Limited (or its affiliates), All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file is part of Mbed TLS (https://tls.mbed.org)
+
+
+# default values, can be overridden by the environment
+: ${MBEDTLS_DOCKER_GUEST:=bionic}
+
+
+DOCKER_IMAGE_TAG="armmbed/mbedtls-test:${MBEDTLS_DOCKER_GUEST}"
+
+# Make sure docker is available
+if ! which docker > /dev/null; then
+    echo "Docker is required but doesn't seem to be installed. See https://www.docker.com/ to get started"
+    exit 1
+fi
+
+# Figure out if we need to 'sudo docker'
+if groups | grep docker > /dev/null; then
+    DOCKER="docker"
+else
+    echo "Using sudo to invoke docker since you're not a member of the docker group..."
+    DOCKER="sudo docker"
+fi
+
+# Build the Docker image
+echo "Getting docker image up to date (this may take a few minutes)..."
+${DOCKER} image build \
+    -t ${DOCKER_IMAGE_TAG} \
+    --cache-from=${DOCKER_IMAGE_TAG} \
+    --build-arg MAKEFLAGS_PARALLEL="-j $(nproc)" \
+    --network host \
+    ${http_proxy+--build-arg http_proxy=${http_proxy}} \
+    ${https_proxy+--build-arg https_proxy=${https_proxy}} \
+    ${MBEDTLS_DOCKER_REGISTRY+--build-arg MY_REGISTRY="${MBEDTLS_DOCKER_REGISTRY}/"} \
+    tests/docker/${MBEDTLS_DOCKER_GUEST}
+
+run_in_docker()
+{
+    ENV_ARGS=""
+    while [ "$1" == "-e" ]; do
+        ENV_ARGS="${ENV_ARGS} $1 $2"
+        shift 2
+    done
+
+    ${DOCKER} container run -it --rm \
+        --cap-add SYS_PTRACE \
+        --user "$(id -u):$(id -g)" \
+        --volume $PWD:$PWD \
+        --workdir $PWD \
+        -e MAKEFLAGS \
+        -e PYLINTHOME=/tmp/.pylintd \
+        ${ENV_ARGS} \
+        ${DOCKER_IMAGE_TAG} \
+        $@
+}
diff --git a/tests/scripts/list-symbols.sh b/tests/scripts/list-symbols.sh
index c258719..930722c 100755
--- a/tests/scripts/list-symbols.sh
+++ b/tests/scripts/list-symbols.sh
@@ -14,8 +14,21 @@
 
 cp include/mbedtls/config.h include/mbedtls/config.h.bak
 scripts/config.pl full
-CFLAGS=-fno-asynchronous-unwind-tables make clean lib >/dev/null 2>&1
+make clean
+make_ret=
+CFLAGS=-fno-asynchronous-unwind-tables make lib \
+      >list-symbols.make.log 2>&1 ||
+  {
+    make_ret=$?
+    echo "Build failure: CFLAGS=-fno-asynchronous-unwind-tables make lib"
+    cat list-symbols.make.log >&2
+  }
+rm list-symbols.make.log
 mv include/mbedtls/config.h.bak include/mbedtls/config.h
+if [ -n "$make_ret" ]; then
+    exit "$make_ret"
+fi
+
 if uname | grep -F Darwin >/dev/null; then
     nm -gUj library/libmbed*.a 2>/dev/null | sed -n -e 's/^_//p'
 elif uname | grep -F Linux >/dev/null; then
diff --git a/tests/scripts/mbedtls_test.py b/tests/scripts/mbedtls_test.py
index ac2912d..6ac68a4 100755
--- a/tests/scripts/mbedtls_test.py
+++ b/tests/scripts/mbedtls_test.py
@@ -79,7 +79,7 @@
         split_colon_fn = lambda x: re.sub(r'\\' + split_char, split_char, x)
         if len(split_char) > 1:
             raise ValueError('Expected split character. Found string!')
-        out = map(split_colon_fn, re.split(r'(?<!\\)' + split_char, inp_str))
+        out = list(map(split_colon_fn, re.split(r'(?<!\\)' + split_char, inp_str)))
         out = [x for x in out if x]
         return out
 
@@ -99,11 +99,11 @@
 
             # Check dependencies
             dependencies = []
-            line = data_f.next().strip()
+            line = next(data_f).strip()
             match = re.search('depends_on:(.*)', line)
             if match:
                 dependencies = [int(x) for x in match.group(1).split(':')]
-                line = data_f.next().strip()
+                line = next(data_f).strip()
 
             # Read test vectors
             line = line.replace('\\n', '\n')
@@ -115,7 +115,7 @@
                 err_str_fmt = "Number of test arguments({}) should be even: {}"
                 raise TestDataParserError(err_str_fmt.format(args_count, line))
             grouped_args = [(args[i * 2], args[(i * 2) + 1])
-                            for i in range(len(args)/2)]
+                            for i in range(int(len(args)/2))]
             self.tests.append((name, function_name, dependencies,
                                grouped_args))
 
@@ -261,21 +261,21 @@
         data_bytes += bytearray([function_id, len(parameters)])
         for typ, param in parameters:
             if typ == 'int' or typ == 'exp':
-                i = int(param)
-                data_bytes += 'I' if typ == 'int' else 'E'
+                i = int(param, 0)
+                data_bytes += b'I' if typ == 'int' else b'E'
                 self.align_32bit(data_bytes)
                 data_bytes += self.int32_to_big_endian_bytes(i)
             elif typ == 'char*':
                 param = param.strip('"')
                 i = len(param) + 1  # + 1 for null termination
-                data_bytes += 'S'
+                data_bytes += b'S'
                 self.align_32bit(data_bytes)
                 data_bytes += self.int32_to_big_endian_bytes(i)
-                data_bytes += bytearray(list(param))
-                data_bytes += '\0'   # Null terminate
+                data_bytes += bytearray(param, encoding='ascii')
+                data_bytes += b'\0'   # Null terminate
             elif typ == 'hex':
                 binary_data = self.hex_str_bytes(param)
-                data_bytes += 'H'
+                data_bytes += b'H'
                 self.align_32bit(data_bytes)
                 i = len(binary_data)
                 data_bytes += self.int32_to_big_endian_bytes(i)
@@ -310,7 +310,7 @@
 
         param_bytes, length = self.test_vector_to_bytes(function_id,
                                                         dependencies, args)
-        self.send_kv(length, param_bytes)
+        self.send_kv(''.join('{:02x}'.format(x) for x in length), ''.join('{:02x}'.format(x) for x in param_bytes))
 
     @staticmethod
     def get_result(value):
diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index ba4010b..10dd04d 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -409,7 +409,7 @@
 /*----------------------------------------------------------------------------*/
 /* Helper Functions */
 
-static void test_fail( const char *test, int line_no, const char* filename )
+void test_fail( const char *test, int line_no, const char* filename )
 {
     test_info.failed = 1;
     test_info.test = test;
@@ -500,7 +500,7 @@
 }
 #endif /* __unix__ || __APPLE__ __MACH__ */
 
-static int unhexify( unsigned char *obuf, const char *ibuf )
+int unhexify( unsigned char *obuf, const char *ibuf )
 {
     unsigned char c, c2;
     int len = strlen( ibuf ) / 2;
@@ -534,7 +534,7 @@
     return len;
 }
 
-static void hexify( unsigned char *obuf, const unsigned char *ibuf, int len )
+void hexify( unsigned char *obuf, const unsigned char *ibuf, int len )
 {
     unsigned char l, h;
 
@@ -588,7 +588,7 @@
  *
  * For convenience, dies if allocation fails.
  */
-static unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
+unsigned char *unhexify_alloc( const char *ibuf, size_t *olen )
 {
     unsigned char *obuf;
 
@@ -639,7 +639,7 @@
  *
  * rng_state shall be NULL.
  */
-static int rnd_zero_rand( void *rng_state, unsigned char *output, size_t len )
+int rnd_zero_rand( void *rng_state, unsigned char *output, size_t len )
 {
     if( rng_state != NULL )
         rng_state  = NULL;
@@ -666,7 +666,7 @@
  *
  * After the buffer is empty it will return rand();
  */
-static int rnd_buffer_rand( void *rng_state, unsigned char *output, size_t len )
+int rnd_buffer_rand( void *rng_state, unsigned char *output, size_t len )
 {
     rnd_buf_info *info = (rnd_buf_info *) rng_state;
     size_t use_len;
@@ -712,7 +712,7 @@
  *
  * rng_state shall be a pointer to a rnd_pseudo_info structure.
  */
-static int rnd_pseudo_rand( void *rng_state, unsigned char *output, size_t len )
+int rnd_pseudo_rand( void *rng_state, unsigned char *output, size_t len )
 {
     rnd_pseudo_info *info = (rnd_pseudo_info *) rng_state;
     uint32_t i, *k, sum, delta=0x9E3779B9;
diff --git a/tests/suites/target_test.function b/tests/suites/target_test.function
index e4c3e30..d430d9d 100644
--- a/tests/suites/target_test.function
+++ b/tests/suites/target_test.function
@@ -59,10 +59,29 @@
     return( DEPENDENCY_SUPPORTED );
 }
 
+/**
+ * \brief       Receives hex string on serial interface, and converts to a byte.
+ *
+ * \param none
+ *
+ * \return      unsigned int8
+ */
+uint8_t receive_byte()
+{
+    uint8_t byte;
+    uint8_t c[3];
+    char *endptr;
+    c[0] = greentea_getc();
+    c[1] = greentea_getc();
+    c[2] = '\0';
+
+    assert( unhexify( &byte, c ) != 2 );
+    return( byte );
+}
 
 /**
  * \brief       Receives unsigned integer on serial interface.
- *              Integers are encoded in network order.
+ *              Integers are encoded in network order, and sent as hex ascii string.
  *
  * \param none
  *
@@ -71,10 +90,17 @@
 uint32_t receive_uint32()
 {
     uint32_t value;
-    value =  (uint8_t)greentea_getc() << 24;
-    value |= (uint8_t)greentea_getc() << 16;
-    value |= (uint8_t)greentea_getc() << 8;
-    value |= (uint8_t)greentea_getc();
+    const uint8_t c[9] = { greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           greentea_getc(),
+                           '\0'
+                         };
+    assert( unhexify( &value, c ) != 8 );
     return( (uint32_t)value );
 }
 
@@ -132,7 +158,7 @@
     greentea_getc(); // read ';' received after key i.e. *data_len
 
     for( i = 0; i < *data_len; i++ )
-        data[i] = greentea_getc();
+        data[i] = receive_byte();
 
     /* Read closing braces */
     for( i = 0; i < 2; i++ )